Novel high-voltage large-current impact resistor
By using a combination of ceramic shell, copper conductor cover plate and aluminum nitride thermal conduction layer in high-voltage and high-current shock resistors, the problem of insufficient energy consumption, volume and thermal conductivity of existing resistors under high-voltage and high-current conditions is solved, and more efficient energy management and smaller volume are achieved.
Patent Information
- Application Number
- CN202422011541.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-20
AI Technical Summary
When existing resistors deal with high voltage and high current conditions, there are problems such as poor energy consumption, excessive volume, and high inductance affecting circuit performance, thermal conductivity and insufficient conductivity.
A new high-voltage high-current impact resistor was designed, using a ceramic shell to provide insulation protection, using a copper conductor cover to reduce electrical energy losses, and quickly conduct heat through the aluminum nitride thermal conduction layer.
It effectively reduces the electrical energy loss inside the resistor, improves thermal conductivity, reduces volume, and improves electrical conductivity, and is suitable for high voltage and high current conditions.
Smart Images
Figure CN223022981U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a novel resistor, in particular to a novel high-voltage large-current impact resistor. Background Art
[0002] In the fields of modern power electronics, industrial automation, etc., the performance requirements for resistors are continuously increasing. When dealing with high-voltage and large-current working conditions, traditional resistors often have problems such as unsatisfactory energy consumption effects, too large volume, high inductance affecting circuit performance, and insufficient thermal and electrical conductivity. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a novel high-voltage large-current impact resistor, which is used to solve the problems that existing resistors often have unsatisfactory energy consumption effects, too large volume, high inductance affecting circuit performance, and insufficient thermal and electrical conductivity when dealing with high-voltage and large-current working conditions.
[0004] To achieve the above purpose, the utility model provides a novel high-voltage large-current impact resistor, including:
[0005] A housing, which is made of ceramic insulation material, and has a communicating placement cavity inside. Both ends of the placement cavity are sealed by copper conductor covers.
[0006] A flexible copper busbar plate is installed in the placement cavity, and metal foil resistor chips are arranged on it. A group of mica plates are respectively installed on both sides of the flexible copper busbar plate. An aluminum nitride heat conduction layer is fixed between the mica plate and the copper conductor cover, and a nickel-chromium-aluminum plate is inserted into the aluminum nitride heat conduction layer.
[0007] As a further scheme of the utility model, the aluminum nitride heat conduction layer includes three groups of aluminum nitride plates, and the nickel-chromium-aluminum plate is inserted behind the aluminum nitride plate on the side close to the flexible copper busbar plate.
[0008] As a further scheme of the utility model, the housing is cylindrical.
[0009] Compared with the prior art, the utility model provides reliable insulation protection for internal components by setting a ceramic housing. At the same time, the copper conductor cover has excellent electrical conductivity, reducing the power loss inside the resistor. The aluminum nitride heat conduction layer has excellent heat conduction performance and can quickly conduct the heat generated by the resistor. Brief Description of the Drawings
[0010] Figure 1 It is a schematic structural diagram of a novel high-voltage large-current impact resistor in the utility model.
[0011] Figure 2 It is an exploded view of the structure of a novel high-voltage large-current impact resistor in the utility model.
[0012] In the accompanying drawings: 1. Outer shell; 2. Copper conductor cover plate; 3. Mica plate; 4. Aluminum nitride plate; 5. Nickel-chromium-aluminum plate; 6. Flexible copper busbar plate. Specific embodiments
[0013] The technical solutions of the present utility model will be further described in detail below in conjunction with specific embodiments.
[0014] As Figure 1 and Figure 2 shown, in an embodiment of the present utility model, a new type of high-voltage and high-current impact resistor includes an outer shell 1 made of a ceramic material with high strength, high temperature resistance, and good insulation performance, providing reliable insulation protection for internal components. A communicating placement cavity is provided inside it, and the two ends of the placement cavity are sealed by a copper conductor cover plate 2, which has excellent electrical conductivity and reduces the power loss inside the resistor; a flexible copper busbar plate 6 is installed in the placement cavity, and a metal platinum resistance wire is arranged on it. A group of mica plates 3 are respectively installed on both sides of the flexible copper busbar plate 6, and an aluminum nitride heat conduction layer is fixed between the mica plate 3 and the copper conductor cover plate 2, and a nickel-chromium-aluminum plate 5 is inserted into the aluminum nitride heat conduction layer.
[0015] As Figure 2 shown, in an embodiment of the present utility model, the aluminum nitride heat conduction layer includes three groups of aluminum nitride plates 4, and the nickel-chromium-aluminum plate 5 is inserted behind the aluminum nitride plate 4 on the side close to the flexible copper busbar plate 6. Of course, the actual number of the aluminum nitride plates 4 can also be flexibly adjusted according to actual situations, such as increasing or decreasing to two groups or four groups, etc.
[0016] As Figure 1 and Figure 2 shown, in an embodiment of the present utility model, the outer shell 1 is cylindrical, and the corresponding copper conductor cover plate 2, mica plate 3, and aluminum nitride heat conduction layer are adapted to the cylindrical placement cavity inside the outer shell 1.
[0017] To sum up, the present utility model provides reliable insulation protection for internal components by setting a ceramic outer shell 1. At the same time, the copper conductor cover plate 2 has excellent electrical conductivity, reducing the power loss inside the resistor, and the aluminum nitride heat conduction layer has excellent heat conduction performance, which can quickly conduct the heat generated by the resistor.
[0018] The preferred embodiments of the present utility model are described in detail above, but the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present utility model.
Claims
1. A new type of high voltage and high current impact resistor, characterized in that: include: The housing is made of ceramic insulating material and is provided with a communicating placement cavity, and the openings at both ends of the placement cavity are sealed by a copper conductor cover plate; A soft copper busbar is installed in the placement cavity, on which a metal foil resistor is arranged. A group of mica boards are installed on both sides of the soft copper busbar, and an aluminum nitride thermal conductive layer is fixed between the mica board and the copper conductor cover plate, and a nickel-chromium-aluminum plate is inserted into the aluminum nitride thermal conductive layer.
2. A novel high-voltage and high-current impact resistor according to claim 1, characterized in that: The aluminum nitride heat conducting layer includes three groups of aluminum nitride plates, and the nickel-chromium-aluminum plate is inserted into the rear side of the aluminum nitride plate close to one side of the soft copper busbar.
3. A novel high-voltage and high-current impact resistor according to claim 1, characterized in that: The shell is cylindrical.